There's two levels of learning. One is to be able to do it. The other is to feel comfortable and push hard and ride with relaxation and aggression.
I am up to over 30 hours of wing foiling and I can now charge around and carve some waves and make most of my carving gybes. I can ride upwind and return to my start point and play with the waves and swell. I am still having trouble getting past the "kite foiling with the hand brake on" feeling.
It took us about 6 hours to learn to kite foil so that we could do it and ride around and have fun. As experienced kite foilers we jumped on a wing foil and did it straight away. It was easy.
Wing foiling is arguably easier than kite foiling because the board is big and floaty and you can stand around and fiddle about and your session is not over after crashing. The board and foils are super stable and relatively slow. You need a lot more wind than you think. Apart from the basic learning you need close to 20 knots to do anything useful.
A couple of lighter wind sessions are valuable. You learn a lot about messing around on the surface and the various ways of getting in with not enough wind.
The best thing I did was go every day. The beach I chose had easy access and lots of stuff to tie the wing to. It had a sandy bottom and sand bars inshore, That made the walk of shame easy and quite relaxing. I also set myself a minimum wind limit of 20 knots. Being up on the foil is fun. Being on the surface is not.
Possibly the hardest thing to get used to is the bulk of wing foiling gear. The boards are big and heavy. The wing has to be secured or it will blow away. A small drop in the wind can mean the difference between foiling and floating. My new board is super light and compact. It's still 5 times bigger than my kite foil board.